Chris Siu Biography and Net Worth

CFO of Aehr Test Systems

Joined the Company as Executive Vice President of Finance and Chief Financial Officer in June 2023.

Prior to joining Aehr, Mr. Siu served as Senior Vice President Finance, Corporate Treasurer and Chief Accounting Officer at Ultra Clean Technologies, a global leading developer and supplier of critical subsystems, and ultra-high purity clean and analytical services, for the semiconductor equipment industry. He is a semiconductor industry veteran, and previously held senior management roles at GlobalFoundries, a multinational semiconductor foundry, and at Trident Microsystems, a fabless semiconductor company. He began his career in public accounting with EY and Deloitte and is a Certified Public Accountant (inactive) in California. Mr. Siu received a Bachelor of Science degree in Accounting from Brigham Young University in Hawaii and a Master of Business Administration degree from the University of California at Berkeley.

What is Chris Siu's net worth?: The estimated net worth of Chris Siu is at least $376.05 thousand as of December 6th, 2023. Siu owns 14,747 shares of Aehr Test Systems stock worth more than $376,049 as of December 5th. This net worth approximation does not reflect any other investments that Siu may own. Learn More about Chris Siu's net worth.
How old is Chris Siu?: Siu is currently 53 years old. There are 5 older executives and no younger executives at Aehr Test Systems. The oldest executive at Aehr Test Systems is Mr. Rhea J. Posedel, Founder & Independent Chairman, who is 82 years old. Learn More on Chris Siu's age.
How do I contact Chris Siu?: The corporate mailing address for Siu and other Aehr Test Systems executives is 400 KATO TERRACE, FREMONT CA, 94539. Aehr Test Systems can also be reached via phone at (510) 623-9400 and via email at [email protected]. Learn More on Chris Siu's contact information.
Has Chris Siu been buying or selling shares of Aehr Test Systems?: Chris Siu has not been actively trading shares of Aehr Test Systems within the last three months. Most recently, Chris Siu sold 322 shares of the business's stock in a transaction on Wednesday, December 6th. The shares were sold at an average price of $25.27, for a transaction totalling $8,136.94. Following the completion of the sale, the chief financial officer now directly owns 14,747 shares of the company's stock, valued at $372,656.69. Learn More on Chris Siu's trading history.
Who are Aehr Test Systems' active insiders?: Aehr Test Systems' insider roster includes Michael Brannan (VP), Fariba Danesh (Director), Gayn Erickson (CEO), David Hendrickson (Insider), Laura Oliphant (Director), Rhea Posedel (Director), Donald Richmond, II (VP), Vernon Rogers (VP), Mario Rosati (Director), Alberto Salamone (EVP), Geoffrey Scott (Director), Chris Siu (CFO), Howard Slayen (Director), Kenneth Spink (CFO), and Alistair Sporck (VP). Learn More on Aehr Test Systems' active insiders.
Are insiders buying or selling shares of Aehr Test Systems?: During the last year, insiders at the semiconductor company sold shares 6 times. They sold a total of 45,995 shares worth more than $929,674.60. The most recent insider tranaction occured on November, 5th when Director Howard T Slayen sold 6,000 shares worth more than $154,380.00. Insiders at Aehr Test Systems own 6.8% of the company. Learn More about insider trades at Aehr Test Systems.
Information on this page was last updated on 11/5/2025.

Chris Siu Insider Trading History at Aehr Test Systems

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction	Details
12/6/2023	Sell	322	$25.27	$8,136.94	14,747

Chris Siu Buying and Selling Activity at Aehr Test Systems

Aehr Test Systems Company Overview

Aehr Test Systems provides test solutions for testing, burning-in, and semiconductor devices in wafer level, singulated die, and package part form, and installed systems worldwide. Its product portfolio includes FOX-XP and FOX-NP systems that are full wafer contact and singulated die/module test and burn-in systems that can test, burn-in, and stabilize range of devices, including silicon carbide-based and other power semiconductors, 2D and 3D sensors used in mobile phones, tablets and other computing devices, memory semiconductors, processors, microcontrollers, systems-on-a-chip, and photonics and integrated optical devices. The company also offers FOX-CP system, a low-cost single-wafer compact test solution for logic, memory, and photonic devices; FOX WaferPak Contactor, a full wafer contactor capable of testing wafers up to 300mm that enables integrated circuit manufacturers to perform test, burn-in, and stabilization of full wafers on the FOX-P systems. In addition, it provides FOX DiePak Carrier, a reusable temporary package that enables IC manufacturers to perform final test and burn-in of bare die and modules; and FOX DiePak Loader. The company was incorporated in 1977 and is headquartered in Fremont, California.

Today's Range

Now: $25.50

$24.33

$25.88

50 Day Range

MA: $25.05

$19.40

$33.25

2 Week Range

Now: $25.50

$6.27

$34.35

Volume

582,423 shs

Average Volume

744,019 shs

Market Capitalization

$765.26 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

2.4

Chris Siu Biography and Net Worth

What is Chris Siu's net worth?

How old is Chris Siu?

How do I contact Chris Siu?

Has Chris Siu been buying or selling shares of Aehr Test Systems?

Who are Aehr Test Systems' active insiders?

Are insiders buying or selling shares of Aehr Test Systems?